HFA3726IN 데이터 시트보기 (PDF) - Intersil
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HFA3726IN Datasheet PDF : 21 Pages
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HFA3726
Test Diagram (280MHz IF)
VCC
0.1
(NOTE 16)
IF_IN 100p 2
75
(NOTE 17)
PE
74
77
100p
VCC
0.1
55
PE
54
57 100p
0.1
45
48
56
3
0.1
14
76
80
47p
79
560 62
0.1 63
56 100p 1K 49
60
100p 61 64
100p
47p
100p
59
(NOTE 18)
LO_IN
47p 220 44
VCC
0.1 VCC
47
9
33 0.001 30
34
29
0.001
35 0.001 28
36
27
0.001
18
56
1K
RSSI
LO_OUT
100p 46
(NOTE 19)
0.1 VCC
19
37 0.001 26
38
25
TX_IF_OUT
47nH 316
42
3 TO 10p
0.001
39 0.001 24
LIM1_PE
TABLE 2. POWER MANAGEMENT
TRANSMIT RECEIVE POWER DOWN
0
1
0
50
43
40
23
0.001
21
41
22
LIM2_PE
0
1
0
LPF_RX_PE
0
1
0
MOD_RX_PE
0
1
0
MOD_TX_PE
1
0
0
LPF_TX_PE
1
0
0
14 0.001 RXI_OUT
HI_Z_PROBE
15 0.001 RXQ_OUT
HI_Z_PROBE
10
2V REF
0.1
12
TXI
50
0.1
11
TXQ
13
50
NOTES:
16. Input termination used to provide a 50Ω impedance. Limiter Noise Figure ≅ 9dB for this configuration.
17. Bandpass filter for 280MHz, BW = 47MHz, Q = 6.
18. Network shown for a typical -10dBm input at 50Ω.
19. Matching network from 250Ω to 50Ω at 280MHz.
FIGURE 22. TEST DIAGRAM (280MHz IF)
13
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